Transportation Study for the Proposed 2538 ... - Vancouver · reflect Vancouver auto mode splits...

Report (Final Draft)

Transportation Study for the Proposed 2538 Birch Street Development, Vancouver, BC Prepared for Jameson Broadway & Birch LP By IBI Group May 2, 2019

Executive Summary

This report presents the Traffic Impact Assessment (TIA) undertaken for the proposed new mixed-use residential, retail and office development on the southeast quadrant of West Broadway and Birch Street Intersection in the City of Vancouver by the Jameson Broadway & Birch LP. The proposed plan calls for 248 residential dwelling units, 11,326 ft2 retail area and 16,239 ft2 office area including one vehicle access located on the rear lane. The development is expected to proceed immediately upon approval and be completed by 2022.

Exhibit 1: Site Plan

The TIA analyzed the capacity and Level of Service (LOS) of three intersections: West Broadway/ Birch Street, Birch Street/ Back Lane, and 10th Avenue/ Birch Street, and parking/ loading/ operational requirements using the following City’s Guidelines methodologies:

• Background traffic volumes were based on the existing/ historic traffic counts and assuming a 0% growth rate.

• Site (development) traffic volumes were estimated based on ITE standard trip rates adjusted to reflect Vancouver auto mode splits and were assigned to the road network based on the existing patterns.

• The performance of the study intersections for the background and combined Weekday AM and PM peak hours was analyzed using the Synchro software.

• Parking and loading requirements were assessed using the City of Vancouver bylaw. • Design vehicle circulation plans were prepared (using the AutoTURN software) to confirm the

loading area requirements. The analyses indicates that:

• The proposed development is estimated to generate 31 new vehicle trips per hour during the AM peak hour and 40 new vehicles per hour during the PM peak hour, which equals to 1 car every 1.5min during the weekday peak hour.

• Site (development) traffic will have minimal impact on the performance of the study area intersections.

• Study area intersections should be able to maintain acceptable levels of service with combined future demands.

• 183 car parking spaces will be provided, exceeding the bylaw requirements. • 438 bicycle parking spaces will be provided, exceeding the bylaw requirements.

• 6 loading spaces will be provided. Two Class B loading spaces will be provided as shared loading spaces for retail and office use.

• The design vehicles are capable of safely maneuvering the vehicle access and loading area.

IBI GROUP REPORT (FINAL DRAFT) TRANSPORTATION STUDY FOR THE PROPOSED 2538 BIRCH STREET DEVELOPMENT, VANCOUVER, BC Prepared for Jameson Broadway & Birch LP

Table of Contents

May 2, 2019 i

Contents

1 INTRODUCTION ....................................................................................................... 1

2 PROPOSED DEVELOPMENT .................................................................................. 2

2.1 Proposed Development Characteristics and Vehicle Access ....................... 2

3 EXISTING AREA CONDITIONS ............................................................................... 3

3.1 Existing Site and Vehicle Accesses .............................................................. 3

3.2 Existing Road Network & Traffic Controls ..................................................... 3

3.3 Existing Traffic Volumes ............................................................................... 5 3.4 Existing Goods Movement Network .............................................................. 6

3.5 Existing Bike Route Network ........................................................................ 7

4 PROJECTED AREA CONDITIONS .......................................................................... 8

4.1 Development (Site) Traffic ............................................................................ 8

4.1.1 Development (Site) Traffic Generation ............................................ 8

4.1.2 Development (Site) Traffic Distribution ............................................ 9 4.1.3 Development (Site) Traffic Volumes ................................................ 9

4.2 Combined Traffic Volumes.......................................................................... 10

5 TRANSPORTATION ANALYSIS ............................................................................ 11

5.1 Intersection Capacity Analysis .................................................................... 11

5.2 Parking and Loading Requirement ............................................................. 13

5.3 Operational Analysis ................................................................................... 14

6 SUMMARY & CONCLUSIONS ............................................................................... 15


Table of Contents (continued)

May 2, 2019 ii

List of Exhibits

Exhibit 1-1: Context Plan ................................................................................................... 1

Exhibit 2-1: Site Plan and Proposed Access Point......................................................... 2

Exhibit 3-1: Lane Configuration and Traffic Control at Study Intersections ............... 4

Exhibit 3-2: Background Traffic Volumes – AM Peak Hour (2018) ............................... 5 Exhibit 3-3: Background Traffic Volumes – PM Peak Hour (2018) ................................ 5

Exhibit 3-4: Existing Truck Route..................................................................................... 6

Exhibit 3-5: Existing Bike Route ....................................................................................... 7

Exhibit 4-1: Proposed Development Trip Generation (Unadjusted) ............................. 8

Exhibit 4-2: Proposed Development Trip Generation (Adjusted) ................................. 8

Exhibit 4-3: Development Traffic Distribution ................................................................. 9 Exhibit 4-4: Site Traffic Volumes – AM Peak Hour ........................................................ 9

Exhibit 4-5: Site Traffic Volumes – PM Peak Hour......................................................... 9

Exhibit 4-6: Combined Traffic Volumes – AM Peak Hour ............................................ 10

Exhibit 4-7: Combined Traffic Volumes – PM Peak Hour............................................. 10

Exhibit 5-1: Background AM and PM Peak Hour Traffic - Analysis Summary .......... 12

Exhibit 5-2: Combined AM and PM Peak Hour Traffic - Analysis Summary .............. 12 Exhibit 5-3: Car Parking Spaces ..................................................................................... 13

Exhibit 5-4: Bike Parking Spaces ................................................................................... 13

Exhibit 5-5: Truck Loading Spaces ................................................................................ 14

List of Appendices Appendix A: Traffic Counts

Appendix B: Capacity Analysis Results (2018)

Appendix C: Capacity Analysis Results (2022)


May 2, 2019 1

1 INTRODUCTION IBI Group has been retained by Jameson Broadway & Birch LP to undertake a Transportation Study for the proposed 28-storey rental housing project located at 2538 Birch Street, Vancouver, BC, shown in Exhibit 1-1.

This study was completed in accordance with the City’s Transportation Assessment and Management Study (TAMS) Guidelines for Consultants and considers current development statistics based on the latest site concept plan of April 29, 2019.

The purpose of this study is to evaluate the impacts of the proposed development in the study area, including:

• Traffic demand generated by the proposed site usage,

• Level of service for the adjacent intersections,

• Truck access and loading movements via the back lane south of the proposed development, and

• Assessment of parking and loading requirements.

Exhibit 1-1: Context Plan


May 2, 2019 2

2 PROPOSED DEVELOPMENT This section discusses the proposed development plan and vehicular access.

2.1 Proposed Development Characteristics and Vehicle Access The developer is proposing a new mixed-use residential, retail and office development on the southeast quadrant of West Broadway and Birch Street Intersection in the City of Vancouver (Exhibit 2-1). The development will include 248 residential dwelling units, 11,326 ft2 retail area and 16,239 ft2 office area.

One vehicle access and all loading activities will be located on the back lane south of the proposed development between Birch Street and Alder Street (see Exhibit 2-1). For the analysis purposes, it is assumed that the development is expected to proceed immediately upon approval and be completed by 2022.

Exhibit 2-1: Site Plan and Proposed Access Point

SITE Parking Ramp

Loading


May 2, 2019 3

3 EXISTING AREA CONDITIONS This section presents the existing transportation conditions in the study area in terms of existing site, road network and traffic volumes.

3.1 Existing Site and Vehicle Accesses The site covers approximately 0.17 hectares (18,762 ft2) of land located within the Fairview neighborhood.

Two existing vehicular accesses to the properties are located on West Broadway and Birch Street.

3.2 Existing Road Network & Traffic Controls The following is a brief description of the existing roads of interest:

• West Broadway is a six-lane east-west major road with two HOV bus lanes.

• Birch Street is a two-lane north-south local road.

• The east-west service lane located south of the site.

As shown in Exhibit 3-1, the existing traffic controls at the study intersections in the immediate vicinity of the site include:

• West Broadway and Birch Street Intersection: Pedestrian actuated half-signal.

• Birch Street and Back Lane Intersection: stop controlled in favor of Birch Street.

• West 10th Avenue and Birch Street Intersection: traffic circle/ minim roundabout.


May 2, 2019 4

Exhibit 3-1: Lane Configuration and Traffic Control at Study Intersections

SITE


May 2, 2019 5

3.3 Existing Traffic Volumes The existing traffic volumes at the study intersections during the weekday a.m. and p.m. peak hours were established based on traffic counts collected by IBI Group on November 20, 2018 (Appendix A).

The existing weekday morning (a.m.) and afternoon (p.m.) peak hour traffic volumes are illustrated in Exhibits 3-2 and 3-3.

Exhibit 3-2: Background Traffic Volumes – AM Peak Hour (2018)

Exhibit 3-3: Background Traffic Volumes – PM Peak Hour (2018)


May 2, 2019 6

3.4 Existing Goods Movement Network The proposed development is adjacent to the West Broadway truck route, which connects to other truck routes in the City (Exhibit 3-4). Based on a traffic count survey, it is assumed 2% trucks in the traffic stream.

Exhibit 3-4: Existing Truck Route


May 2, 2019 7

3.5 Existing Bike Route Network The proposed development is adjacent to a local street bikeway on West 10th Avenue, which connects to other bike routes in the City (Exhibit 3-5).

Exhibit 3-5: Existing Bike Route


May 2, 2019 8

4 PROJECTED AREA CONDITIONS 4.1 Development (Site) Traffic This section presents an estimate of the future traffic volumes generated by the proposed development. Trips currently generated by the existing development have not been deducted from trips generated by the proposed land use, thus this analysis generates conservative results.

4.1.1 Development (Site) Traffic Generation The following methodology was used to estimate development trips:

• The trip generation was initially estimated based on the Institute of Transportation Engineers (ITE) 10th Edition standard trip rates (Exhibit 4-1)1.

• The ITE trip rates were adjusted by using the auto mode splits 2(33%), as per The City of Vancouver's Transportation 2040 Plan (Exhibit 4-2).

Exhibit 4-1: Proposed Development Trip Generation (Unadjusted)

Residential Office Retail Peak Hour AM PM AM PM AM PM ITE Code 222 710 820 ITE Trip Generation (Average Rate) 0.21 0.19 0.83 0.87 2.41 4.92 Proposed Development (units, rooms or ft2/1,000) 249 249 16.3 16.3 11.6 11.6 Existing Development (units, rooms or ft2/1,000) 0 0 0 0 0 0 Net New Development (units, rooms or ft2/1,000) 249 249 16.3 16.3 11.6 11.6 % Inbound 12% 70% 86% 17% 54% 48% In 6 33 12 2 15 27 Out 46 14 2 12 13 30 Total (veh/hr) 52 47 14 14 28 57

Based on the ITE trip rates, the proposed development would generate a total of 94 auto trips during the AM peak hour, and 118 auto trips during the PM peak hour.

Exhibit 4-2: Proposed Development Trip Generation (Adjusted)

Residential Office Retail Peak Hour AM PM AM PM AM PM Travel Model Split (auto mode %, 2040 taget) 33% 33% 33% 33% 33% 33% In 2 11 4 1 5 9 Out 15 5 1 4 4 10 Total (veh/hr) 17 16 5 5 9 19

After the mode split adjustment, the proposed development is estimated to generate a total of 31 auto trips during the AM peak hour and 40 auto trips during the PM peak hour, which equals to 1 car every 1.5min during the weekday peak hour.

1 The size of development changed since the TIA was prepared and modelled. A quick review of the implication of this change to the trip generation estimates used in the TIA indicate that the overall site-generated traffic will be slightly less than what has been assumed in this TIA and the following capacity analysis results of this TIA is acceptable. 2 Auto mode splits refer to the proportion of trips made by automobile of travel.


May 2, 2019 9

4.1.2 Development (Site) Traffic Distribution The new vehicle trips were distributed and assigned to the road network based on the existing traffic distribution:

Exhibit 4-3 illustrates the AM and PM peak hour trip distribution.

Exhibit 4-3: Development Traffic Distribution

Peak Period AM Peak Hour PM Peak Hour Location In Out In Out Broadway (West) 36% 53% 40% 50%

Birch (North) 3% 7% 6% 4% Broadway (East) 56% 36% 49% 39% 10 Ave (East) 1% 1% 2% 2% Birch (South) 3% 1% 1% 4% 10 Ave (West) 1% 2% 2% 1% TOTAL 100% 100% 100% 100%

4.1.3 Development (Site) Traffic Volumes Exhibits 4-4 and 4-5 illustrate the resulting site traffic volumes at the study intersections.

Exhibit 4-4: Site Traffic Volumes – AM Peak Hour

Exhibit 4-5: Site Traffic Volumes – PM Peak Hour


May 2, 2019 10

4.2 Combined Traffic Volumes The "combined" or post-redevelopment traffic conditions in the anticipated 2022 opening year were analyzed. The 2022 combined volumes were obtained by superimposing the future development (site) traffic volumes over the 2018 background volumes.

A 0% growth rate was assumed for the background traffic volumes, based on the “growth of traffic” analysis along West Broadway during the period 2010-2013, which indicates no traffic growth. It also aligns with other TIA reports carried out in the City of Vancouver.

The resulting combined volumes in the AM and PM peak hours in the 2022 horizon year are given in Exhibits 4-6 and 4-7, respectively.

Exhibit 4-6: Combined Traffic Volumes – AM Peak Hour

Exhibit 4-7: Combined Traffic Volumes – PM Peak Hour


May 2, 2019 11

5 TRANSPORTATION ANALYSIS This section presents the transportation analysis undertaken to obtain a clearer understanding of both the transportation-related implications of the proposed development and the improvements necessary to ensure acceptable operating conditions. The analysis covers:

• Intersection Capacity Analysis.

• Parking and loading requirements.

• Operational Analysis (Truck access and loading movements).

5.1 Intersection Capacity Analysis A capacity analysis was carried out using the Highway Capacity Manual (HCM 2010) methodology and specifically the Synchro 10.1 software. Capacity analysis was carried out at three study intersections:

• West Broadway and Birch Street Intersection: Pedestrian actuated half-signal. Since this type of intersection control can’t be modeled in Synchro, Semi-Actuated-Uncoordinated control has been selected to replicate high pedestrian demand and impacts to side street traffic.

• Birch Street and Back Lane Intersection: stop controlled in favor of Birch Street.

• West 10th Avenue and Birch Street Intersection: traffic circle/ minim roundabout.

In general, capacity analyses for study intersections and roadway sections should show an overall minimum Level of Service (LOS) 3“D”, as well as individual movement minimum LOS ‘D’ by using “Highway Capacity Manual” methodology. In this study, improvements of study intersections and roadway sections were recommended based on:

• Overall LOS of intersections, as well as individual movement LOS, are worse than ‘D’.

• LOS of roadway sections is worse than ‘D’.

• Volume/capacity (v/c) ratios for overall intersection operation or any individual movement are 0.85 or above.

• Queues for an individual movement are projected to exceed available turning lane storage based on the 95th percentile queue criteria.

The reminder of this section presents the traffic performance for the study intersections relative to the above criteria. Where traffic operations exceed the thresholds, it has been shown with red colors.

A capacity analysis was carried out for background traffic (2018) and combined (background + site traffic) traffic volume (both AM and PM peak hours) scenarios. The above-noted analyses anticipated minimal impact on the performance of the study intersections. (See Exhibits 5-1 and 5-2).

The detailed capacity analysis results for the background and combined traffic scenarios are tabulated in Appendices B and C.

3 Defined by the Highway Capacity Manual (HCM 2010), Level of Service (LOS) is a qualitative measure used to analyze performance of roadways and intersections.


May 2, 2019 12

Exhibit 5-1: Background AM and PM Peak Hour Traffic - Analysis Summary

ID Intersection Peak Hour Critical V/C Overall LOS

1 W Broadway @ Birch St. AM 0.42 A PM 0.58 A

2 Back Service Lane @ Birch St. AM 0.01 A PM 0.05 A

3 W 10th Ave. @ Birch St. AM 0.04 A PM 0.10 A

Exhibit 5-2: Combined AM and PM Peak Hour Traffic - Analysis Summary

ID Intersection Peak Hour Critical V/C Overall LOS

1 W Broadway @ Birch St. AM 0.43 A PM 0.61 A

2 Back Service Lane @ Birch St. AM 0.03 A PM 0.05 A

3 W 10th Ave. @ Birch St. AM 0.04 A PM 0.10 A

The following is a brief summary of the analysis results for the combined traffic conditions:

• The intersection should operate with overall LOS = A.

• All individual movements should operate with LOS = C or better.

• The intersection delays are 10 sec or lower.

• The intersection should operate with V/C ratio 0.61 or less.

• Traffic spillback may not occur.


May 2, 2019 13

5.2 Parking and Loading Requirement The following provides a summary of the requirements for the proposed development based on the City’s Bylaw 6059 and a number of spaces proposed by the developer:

Exhibit 5-3: Car Parking Spaces

Land Use GFA (ft2) Units Parking Rate Min. Required

Stalls Proposed

Stalls Secured Market Rental

Residential-General + Handicap 134,179 186 1 stall per 1,346 SF 100 120

Secured Market Rental Residential Visitor 134,179 186 0.05 per unit 9 9

Moderate Income Rental Residential-General + Handicap 35,659 62

Minimum of 1 stall per 1,346 SF. Less 30% for proximity to

major bus routes

19 19

Moderate Income Rental Residential Visitor 35,659 62 0.05 per unit 3 3

Retail-General + Handicap 11,326

1 stall per 1,561 SF for first 3,122 SF+1 stall per 753 SF for

remaining area

13 13

Office-General + Handicap 16,239

1 stall per 1,561 SF for first 3,122 SF+1 stall per 753 SF for

remaining area

19 19

Total 163 183

Exhibit 5-4: Bike Parking Spaces


Stalls Proposed

Stalls

Secured Market Rental Residential - Class A 186

1.5/Unit under 700 SF + 2.5/Unit over

700 and under 1,130 SF

315 315

Moderate Income Rental Residential - Class A 62

1.5/Unit under 700 SF + 2.5/Unit over

700 and under 1,130 SF

109 109

Retail - Class A 11,326 1 space per 3,660 SF (Retail) 3 3

Office - Class A 16,239 1 space per 1,830 SF (Office) 9 11

Total 436 438


May 2, 2019 14

Exhibit 5-5: Truck Loading Spaces


Stalls Proposed

Stalls

Secured Market Rental Residential - Class A 186

1 space for any development with 50 to 125 dwelling units

+ one space for every additional 150

dwelling units

1 1

Secured Market Rental Residential - Class B 186

At least one space for 100 to 299 dwelling units

1 1

Moderate Income Rental Residential - Class A 62

1 space for any development with 50 to 125 dwelling units

+ one space for every additional 150

dwelling units

1 1

Retail - Class B 11,326

1 space for first 5,005 SF + 1 space for any portion of the

next 20,021 SF

2 2

Office - Class A 16,239 1 space for 10,764 SF to 80,723 SF 1 1

Office - Class B 16,239 1 space for first 5,382 to 53,820 SF 1 0

Total 7 6

Based on the analysis:

• 183 car parking spaces will be provided, exceeding the bylaw requirements.

• 438 bicycle parking spaces will be provided, exceeding the bylaw requirements.

• 6 loading spaces (3 Class “A” and 3 Class “B”) will be provided. Two Class B loading spaces will be provided as shared loading spaces for retail and office use.

5.3 Operational Analysis The architectural submission illustrates plans showing that the MSU (medium single unit truck), and P (large passenger car) design vehicles can safely maneuver the proposed development loading area and the parking ramp.


May 2, 2019 15

6 SUMMARY & CONCLUSIONS Based on the above, the following should be noted:

• The proposed development is estimated to generate 31 new vehicle trips per hour during the weekday morning (AM) peak hour and 40 new vehicles per hour during the weekday afternoon (PM) peak hour which equals to approximately 1 car every 1.5min during the weekday peak hour.

• The analysis indicates that development-generated traffic will have minimal impact on the performance of the study area intersections.

• All study intersections are expected to perform acceptably.

• 183 car parking spaces will be provided, exceeding the bylaw requirements.

• 438 bicycle parking spaces will be provided, exceeding the bylaw requirements.

• 6 loading spaces will be provided. Two Class B loading spaces will be provided as shared loading spaces for retail and office use.

• The design vehicles are capable of safely maneuvering the vehicle access and loading area.


May 2, 2019 16

Appendix A Traffic Counts

Broadway and Birch Traffic Counts November 20, 2018

Peak Hour 08:00Peak 15min 08:00North approach PHF 0.25

N South approach PHF 0.25^ West approach PHF 0.25‚ East approach PHF 0.25

AM Peak Hour Volumes

49 | 121N | E

101 32 6 11 | 89| 81

<--- 882 | 845 943 <---| 17

---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----30 |

---> 609 560 | 595 --->19 |

100 | 5 10 24 36W | S

42 | 39 West Broadway---->

Peak Hour 15:30Peak 15min 15:30North Leg PHF 0.25

N South Leg PHF 0.25^ West Leg PHF 0.25‚ East Leg PHF 0.25

PM Peak Hour Volumes

143 | 91N | E

122 67 25 51 | 97| 31

<--- 1187 | 1108 1174 <---| 35

---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----51 |

---> 960 854 | 940 --->55 |85 | 12 9 35 52W | S

115 | 56 West Broadway---->

Birch and Back Public Lane Traffic Count November 20, 2018




50 | 39N | E5 15 17 18 | 2

| 3<--- 20 | 3 6 <---

| 0---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----

8 |---> 10 2 | 27 --->

0 |40 | 2 28 7 25W | S

17 | 37 Back Lane---->




98 | 56N | E8 12 82 4 | 1

| 10<--- 21 | 0 18 <---

| 8---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----

18 |---> 29 2 | 11 --->

9 |56 | 9 28 5 33W | S

99 | 42 Back Lane---->

Birch and 10th Traffic Count November 20, 2018




17 | 34N | E

24 5 9 3 | 18| 1

<--- 30 | 13 14 <---| 0

---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----8 |

---> 20 11 | 20 --->1 |

33 | 12 25 6 25W | S

10 | 43 10 Ave---->




99 | 54N | E

33 12 82 5 | 5| 33

<--- 32 | 19 54 <---| 2

---- ---- ---- ---- ---- ---- + ---- ---- ---- ---- ---- ----3 |

---> 41 30 | 42 --->8 |

18 | 1 18 7 23W | S

92 | 26 10 Ave---->


May 2, 2019 17

Appendix B Capacity Analysis Results (2018)

2018 Existing Traffic Volumes - Intersection Capacity Analysis

Intersection Scenario Control Type Measure Overall

Intersection

L T R L T R L T R L T RLane Configurations 0 <2 1 0 <2 1 0 <1> 0 0 <1> 0 2Traffic Volume (vph) 30 560 19 17 845 81 5 10 24 11 6 32 1640

v/c N/A 0.31 0.02 N/A 0.42 0.11 N/A 0.11 N/A N/A 0.15 N/A 0.42Delay (s) N/A 7 2 N/A 7 2 N/A 15 N/A N/A 15 N/A 7.1

LOS N/A A A N/A A A N/A B N/A N/A B N/A A50th Queue Length* N/A 20 0 N/A 33 0 N/A 2 N/A N/A 2 N/A95th Queue Length** N/A 28 2 N/A 43 4 N/A 10 N/A N/A 11 N/A

Lane Configurations 0 <2 1 0 <2 1 0 <1> 0 0 <1> 0 2Traffic Volume (vph) 51 854 55 35 1108 31 12 9 35 51 25 67 2333


LOS N/A A A N/A A A N/A B N/A N/A C N/A A50th Queue Length* N/A 37 1 N/A 51 0 N/A 3 N/A N/A 14 N/A95th Queue Length** N/A 51 4 N/A 67 3 N/A 13 N/A N/A 32 N/A

Lane Configurations 0 <1> 0 0 <1> 0 0 <1> 0 0 <1> 0 0Traffic Volume (vph) 8 2 0 0 3 3 2 28 7 18 17 15 103

v/c 0.01 0.01 0.01 0.01 0.00 0.00 0.00 0.01 0.01 0.01 0.01Delay (s) 10 10 9 9 0 0 0 0 3 3 3.00

LOS A A A A A A A A A A A50th Queue Length* 95th Queue Length** 0 0 0 0 0 0 0 0 0 0


v/c 0.05 0.05 0.05 0.02 0.02 0.01 0.01 0.01 0.00 0.00 0.00 0.05Delay (s) 11 11 11 9 9 0 2 2 0 0 0 3.10

LOS B B B A A A A A A A A A50th Queue Length* 95th Queue Length** 1 1 1 1 1 0 0 0 0 0 0


v/c 0.02 0.01 0.04 0.02 0.04Delay (s) 3 4 4 3 3.50

LOS A A A A A50th Queue Length*

95th Queue Length** 0 0 0 0


v/c 0.04 0.05 0.03 0.10 0.10Delay (s) 4 4 4 4 3.90



W Broadway @ Birch

AM

Uns

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Eastbound Westbound

PM

Sign

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AM

Northbound

Sign

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MovementU

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Back Lane @ Birch

W 10 th Ave @ Birch


May 2, 2019 18

Appendix C Capacity Analysis Results (2022)

2021 Build-out Background + Site Traffic Volumes - Intersection Capacity Analysis

Intersection Scenario Control Type Measure Overall

Intersection

L T R L T R L T R L T RLane Configurations 0 <2 1 0 <2 1 0 <1> 0 0 <1> 0 2Traffic Volume (vph) 30 560 23 23 845 81 17 11 32 11 6 32 1671


LOS N/A A A N/A A A N/A B N/A N/A B N/A A50th Queue Length* N/A 20 0 N/A 33 0 N/A 4 N/A N/A 2 N/A95th Queue Length** N/A 28 2 N/A 44 4 N/A 14 N/A N/A 11 N/A

Lane Configurations 0 <2 1 0 <2 1 0 <1> 0 0 <1> 0 2Traffic Volume (vph) 51 854 64 46 1108 31 22 10 42 51 26 67 2372


LOS N/A A A N/A A A N/A B N/A N/A C N/A A50th Queue Length* N/A 37 1 N/A 53 0 N/A 4 N/A N/A 15 N/A95th Queue Length** N/A 51 5 N/A 70 3 N/A 15 N/A N/A 32 N/A


v/c 0.02 0.02 0.03 0.03 0.00 0.00 0.00 0.02 0.02 0.02 0.03Delay (s) 11 11 9 9 0 0 0 0 4 4 4.20

LOS B B A A A A A A A A A50th Queue Length* 95th Queue Length** 0 0 1 1 0 0 0 1 1 1


v/c 0.05 0.05 0.05 0.04 0.04 0.01 0.01 0.01 0.02 0.02 0.02 0.05Delay (s) 11 11 11 9 9 0 2 2 0 2 2 4.10

LOS B B B A A A A A A A A A50th Queue Length* 95th Queue Length** 1 1 1 1 1 0 0 0 0 0 0


v/c 0.02 0.01 0.04 0.02 0.04Delay (s) 3 4 4 3 3.50




v/c 0.04 0.05 0.03 0.10 0.10Delay (s) 4 4 4 4 3.90



W Broadway @ Birch

AM

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PM

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Back Lane @ Birch

W 10 th Ave @ Birch

Transportation Study for the Proposed 2538 ... - Vancouver · reflect Vancouver auto mode splits...

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